Southwark Metal 51F484SD Register Boot 8x4x4

Product Description

The SOUTHWARK METAL 51F484SD is an 8x4x4 601 register boot used in residential and light commercial HVAC duct systems. A register boot connects the supply duct to the floor, wall, or ceiling register opening, transitioning airflow from the branch duct into the conditioned space. This fitting is sized with an 8-inch by 4-inch duct collar and a 4-inch depth, making it suited for standard low-profile installations. HVAC technicians and sheet metal installers work with this component during new construction and retrofit duct work.

The 51F484SD fits into forced-air heating and cooling systems where a branch duct terminates at a register opening. The 601 designation indicates a standard straight-boot configuration commonly used in residential floor and sidewall register applications. It is typically installed as part of a complete duct run during new construction or when replacing a damaged boot in an existing system.

Key Features

• 8x4x4 dimensions suit standard branch duct and register opening combinations
• 601-style straight boot design for floor or sidewall register terminations
• Sheet metal construction typical of SOUTHWARK METAL duct fittings
• Sized for connection to 8-inch by 4-inch rectangular duct collars

Compatibility

Designed as an OEM-style replacement or new-construction fitting for residential and light commercial forced-air duct systems requiring an 8x4x4 register boot termination.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal installers. Power down the air handler or furnace before working on the duct system. Secure the boot to the subfloor or wall framing per local mechanical code requirements, and seal all joints with UL-listed duct tape or mastic sealant to prevent air leakage. Follow applicable SMACNA standards and local mechanical codes during installation.

Technical Specifications

• Boot Size: 8 x 4 x 4 inches
• Style: 601 Register Boot

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 51F484SD